If you think that writing to CASA makes thing one of difference in the regulatory reform program, other than to make it more complicated and costly, good luck to you. You obviously don't subscribe to the orthodox definition of "insanity".
Good work on the prop AD. You weren't alone. That work hopefully gave you an insight into the lack of intellectual rigour, risk analysis, failure data and time in service data analysis and cost/benefit analysis that goes into CASA-initiated "safety" requirements.
I've made many submissions and assisted others to do the same in relation to aviation regulation. Just not to CASA. It's pointless. CASA's a self-licking ice cream.
I apologise for accusing you of working for CASA. It is a serious slur on your character if untrue.